YOU SAID:

I need to lastly be open

INTO JAPANESE

最後にオープンする必要はあります。

BACK INTO ENGLISH

You need to open at the end.

INTO JAPANESE

最後に開く必要があります。

BACK INTO ENGLISH

You should open at the end.

INTO JAPANESE

最後に開く必要があります。

BACK INTO ENGLISH

You should open at the end.